On the Origin of Species by Means of Natural Selection, Or The Preservation of Favoured Races in the Struggle for LifeIt took Charles Darwin more than twenty years to publish this book, in part because he realized that it would ignite a firestorm of controversy. The Origin of Species first appeared in 1859, and it remains a continuing source of conflict to this day. Even among those who reject its ideas, however, the work's impact is undeniable. In science, philosophy, and theology, this is a book that changed the world. In addition to its status as the focus of a dramatic turning point in scientific thought, On the Origin of Species stands as a remarkably readable study. Carefully reasoned and well-documented in its arguments, the work offers coherent views of natural selection, adaptation, the struggle for existence, survival of the fittest, and other concepts that form the foundation of modern evolutionary theory.--Amazon.com. |
From inside the book
Results 1-5 of 81
Page 8
... reasons make me believe in this ; but the chief one is the remarkable effect which confine- ment or cultivation has on the functions of the repro- ductive system ; this system appearing to be far more susceptible than any other part of ...
... reasons make me believe in this ; but the chief one is the remarkable effect which confine- ment or cultivation has on the functions of the repro- ductive system ; this system appearing to be far more susceptible than any other part of ...
Page 14
... reason why a pecu- liarity should appear at any particular age , yet that it does tend to appear in the offspring at the same period at which it first appeared in the parent . I believe this rule to be of the highest importance in ...
... reason why a pecu- liarity should appear at any particular age , yet that it does tend to appear in the offspring at the same period at which it first appeared in the parent . I believe this rule to be of the highest importance in ...
Page 18
... reasons which I cannot give here , I am doubtfully inclined to believe , in opposition to several authors , that all the races have descended from one wild stock . Mr. Blyth , whose opinion , from his large and varied stores of ...
... reasons which I cannot give here , I am doubtfully inclined to believe , in opposition to several authors , that all the races have descended from one wild stock . Mr. Blyth , whose opinion , from his large and varied stores of ...
Page 23
... reasons which have led me to this belief are in some degree applicable in other cases , I will here briefly give them . If the several breeds are not varieties , and have not proceeded from the rock - pigeon , they must have descended ...
... reasons which have led me to this belief are in some degree applicable in other cases , I will here briefly give them . If the several breeds are not varieties , and have not proceeded from the rock - pigeon , they must have descended ...
Page 26
... to me rash in the extreme . From these several reasons , namely , the improbability of man having formerly got seven or eight supposed species of pigeons to breed freely under domestication ; these 26 CHAP . I. DOMESTIC PIGEONS .
... to me rash in the extreme . From these several reasons , namely , the improbability of man having formerly got seven or eight supposed species of pigeons to breed freely under domestication ; these 26 CHAP . I. DOMESTIC PIGEONS .
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Common terms and phrases
adapted affinities allied species America analogous variations ancient animals appear become bees believe birds breeds cause cells characters cirripedes climate closely allied colour common parent continuous crossed crustaceans degree difficulty distant distinct species divergence domestic doubt embryo existing exterminated extinct extremely facts favourable fertility flowers formations forms fossil Gärtner genera genus geological geological period Glacial period greater number groups of species habits Hence hermaphrodites horse hybrids hybrids produced important individuals inhabitants inherited insects instance instincts intercrossing intermediate larvæ legs less living males mammals manner Marsupials migration modification modified descendants natural selection naturalists nearly nest occasionally offspring organisation perfect pigeons pistil plants pollen probably produced progenitor quagga racters ranked reciprocal crosses remarked resemble rock-pigeon rudimentary organs secondary sexual seeds sexual selection Silurian slight sometimes South America sterility striped structure struggle successive supposed tendency theory tion variability varieties vary whole widely